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SEC Form 4/A · accession 0001292814-26-003506

COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP · SBS

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

This is an amendment (Form 4/A). It replaces an earlier filing for the same period.
Reporting owner
Daniel Szlak
Officer — Chief Financial Officer
Period of report
Jun 15, 2026
Accepted (ET)
Jun 17, 2026 · 4:19 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001170858

Table I — non-derivative securities

SecurityDateCodeSharesPriceA/DOwned afterD/INature of ownership
Common SharesF1Jun 15, 2026S7,300$5.59D81D
Common SharesF2Jun 15, 2026S81$5.58D0D

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses

Remarks

This Form 4/A amends the Form 4 filed on June 16, 2026 to: (i) correct the price per share reported in Table I; (ii) correct the amount of securities beneficially owned following the transaction reported in Line 1 of Table I; and (iii) correct the signature block to reflect the proper reporting person. Due to the issuer's status as a foreign private issuer pursuant to Rule 3a12-3(b) under the Securities Exchange Act of 1934 (the "Act"), the reporting person's transactions in the issuer's equity securities are exempt from Sections 16(b) and 16(c) of the Act.